Phoenix LRT northwest extension to open on March 19, 2016 December 11, 2015 | North America News The opening date for Phase I of the north-west extension of the Valley Metro light-rail transit (LRT) line in Phoenix, Arizona, has been set as March 19, 2016. The extension will span 5.1 km (3.2 mile... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password